212311302331313 has 4 divisors (see below), whose sum is σ = 212330042858340. Its totient is φ = 212292561804288.

The previous prime is 212311302331267. The next prime is 212311302331321. The reversal of 212311302331313 is 313133203113212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68389459723264 + 143921842608049 = 8269792^2 + 11996743^2 .

It is a cyclic number.

It is not a de Polignac number, because 212311302331313 - 2¹⁰ = 212311302330289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212311302331393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9370246520 + ... + 9370269177.

It is an arithmetic number, because the mean of its divisors is an integer number (53082510714585).

Almost surely, 2^{212311302331313} is an apocalyptic number.

It is an amenable number.

212311302331313 is a deficient number, since it is larger than the sum of its proper divisors (18740527027).

212311302331313 is a wasteful number, since it uses less digits than its factorization.

212311302331313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18740527026.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 212311302331313 its reverse (313133203113212), we get a palindrome (525444505444525).

The spelling of 212311302331313 in words is "two hundred twelve trillion, three hundred eleven billion, three hundred two million, three hundred thirty-one thousand, three hundred thirteen".